C08G 18/2054
Having one nitrogen atom in the condensed ring system
Official title: {having one nitrogen atom in the condensed ring system}
C08G18/2054 (Having one nitrogen atom in the condensed ring system) appears on 14 US grants and 10 published applications in this corpus.
Search patents in C08G- Granted patents
- 14
- Published applications
- 10
- Assignees
- 11
- Inventors
- 44
- Latest grant
- 7 Sep 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 1 | 1 |
| 2017 | 1 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 2 |
| 2021 | 1 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Isocyanate polymerization catalyst, preparation method thereof, and method for preparing polyisocyanate by using same7 Sep 2021US 11,111,332 B2Wanhua Chemical Group Co., Ltd.
- Tertiary amine composition and method for making the composition30 Jul 2019US 10,364,315 B2Evonik Degussa GmbH
- Tertiary amine composition and method for making the composition18 Jul 2017US 9,708,436 B2Evonik Degussa GmbH
- Tertiary amine composition and method for making the composition1 Mar 2016US 9,273,175 B2Air Products and Chemicals, Inc.
- Adhesive polyurethane powder capable of being activated by heat15 Sep 2015US 9,133,377 B2A. Raymond Et Cie
- Catalyst for pir/pur foam production6 Jun 2024US 2024/0182627 A1Huntsman International LLC
- Compositions, method of bonding, and bonded assembly21 Jan 2021US 2021/0017432 A13M Innovative Properties Company
- Isocyanate Polymerization Catalyst, Preparation Method Thereof, And Method For Preparing Polyisocyanate By Using Same23 Apr 2020US 2020/0123300 A1Wanhua Chemical Group Co., Ltd.
- Method for modifying at least pentamethylene diisocyanate by means of spirocyclic ammonium salts as catalyst2 Jan 2020US 2020/0002462 A1Covestro Deutschland AG
- Tertiary amine composition and method for making the composition2 Nov 2017US 2017/0313805 A1Evonik Degussa GmbH
Most cited
By later US patents
- 3-quinuclidinol catalyst compositions for making polyurethane foams16US 5,143,944 AAir Products and Chemicals, Inc. · 1992
- Non-fugitive gelling catalyst compositions for making polyurethane foams15US 5,233,039 AAir Products and Chemicals, Inc. · 1993
- Preparation and use of 3, (4)-substituted pyrrolidines as catalysts for the polyisocyanate polyaddition process11US 5,274,114 ABayer Aktiengesellschaft · 1993
- 3-quinuclidinol catalyst compositions for making polyurethane foams8US 5,194,609 AAir Products and Chemicals, Inc. · 1993
- Hydroxy and amino functional pyrrolizidine catalyst compositions for the production of polyurethanes7US 5,512,603 AAir Products and Chemicals, Inc. · 1996